Links

Worldwatch Institute Homepage.
www.worldwatch.org

National Soil Survey Center
www.statlab.iastate.edu/soils/nssc

Journal of Natural Resources and Life Sciences Education.
www.agronomy.org/journals

Soil Science Society of America Homepage.
www.soils.org

Digital video of soil microbiology.
www.agron.iastate.edu/~loynachan/mov/

An elder statesman/soil scientist/artist/philospher opinions about soil.
www.soils.wisc.edu/soils/poets/hole1.htm

The NSCSS Pedology Page
www.nscss.org/ped.html

Michigan Extension publication, a layman's practical description of soil textures.
www.msue.msu.edu/msue/imp/modop/00001810.html

A terrific collection of soil photos, including photos of soil structure.
www. waite.adelaide.edu.au/Soil_Science/slstruct.html

Scans showing affect of cropping on soil structure.
www.crop.cri.nz/curresea/soil/structur.htm

The Merriam-Webster page is a convenient place to look-up unfamiliar words.
www.m-w.com

Sciences of Soils is an online journal; this article from the journal discusses rigorously the concept of field capacity. www.hintze-online.com/sos/1997/Articles/Art2

Notes on Atterberg Limits from another course.
www.egr.msu.edu/~wolff/ce812/handouts/notes_atterberg.htm

NASA's Soil mechanics findings from Mars Pathfinder.
www.ksc.nasa.gov/mars/science/surface.html

Homepage of American Society for Testing and Materials (ASTM).
www.astm.org

Theory and measurement of water potential; a website from a company selling instruments that measure water potential.
www.focuscorp.co.kr/decagon/W-potenT.htm

Soda Bottle Hydrology is instructional material provided by the Department of Energy containing useful, practical demonstrations. www.em.doe.gov/soda/index.html

A website with good diagrams illustrating principles of osmosis and water potential.
www.biology.demon.co.uk/Biology/mod1/osmosis/osmosis.htm

Many companies that manufacture or sell soil moisture instrumentation have useful web sites. Without implying endorsement of any particular company, a few web sites are listed here.
www.soilmoisture.com
www.esica.com/support/index.html
www.decagon.com

Official NRCS USDA soil series descriptions; a database maintained by Iowa State University.
www.statlab.iastate.edu/soils/osd/

Nested within the above database is the 1996 edition of Keys to Soil Taxonomy. 
www.statlab.iastate.edu/soils/keytax/

The Zobler World Soils Data Set contains an international view of soil classification based on the FAO system.
edcwww.cr.usgs.gov/glis/hyper/guide/world_soil

Soils Online contains perhaps the most extensive array of soils information of any web site. It includes soil taxonomy.
hintze-online.com/sos/soils-online.htm

The Potash & Phosphate Institute has a useful web site, and they publish a journal, Better Crops with Plant Food.
www.agriculture.com/ppi/index.htm

Cornell University maintains a web site devoted to composting.
www.cfe.cornell.edu/compost/calc/fertnit.html

A Canadian manure management web site.
res.agr.ca/manurenet/

Ohio State University Extension offers practical nitrogen fertilizer advice based on what you just learned about nitrogen behavior.
www.ag.ohio-state.edu/~ohioline/agf-fact/agf-205.html

A web site for practical evaluation of deficiency symptoms; a few pictures are provided.
www.fontanelle.com/html/fielder/Summer98/98summer3.htm

An academic approach to nutrient deficiency symptoms.
www.smallgrains.org/Techfile/Franzen.htm#Nitrogen

A downloadable program to calculate fertilizer requirements from New Mexico State University.
weather.nmsu.edu/soils/fertcal.htm

USDA economics and statistics library, maintained by Cornell University. Data includes fertilizer statistics.
usda.mannlib.cornell.edu/ess_entry.html

Applications of the USLE.
pasture.ecn.purdue.edu/~aggrass/agnps/usle.html-

Home page for the RUSLE.
www.itc.nrcs.usda.gov/focs/RUSLE/

Home page for the Soil and Water Conservation Society.
www.swcs.org

Sustainable agriculture web page with lots of links for water resources.
www.floridaplants.com/waterres.htm

A web page from Germany with a comprehensive library of irrigation information.
www.wiz.uni-kassel.de/kww/projekte/irrig/irrig_i.html

A web page from a well known company (no endorsement implied) supplying irrigation technology and hardware.
www.rainbird.com

The web page for the American Water Resources Association.
www.awra.org

A thorough description of the Houston Black, the state soil of Texas. This description illustrates the soil information contained in a published Soil Survey book.
www.tx.nrcs.usda.gov/soil/hblack.html

Home page of the Food and Agriculture Organization (FAO) of the United Nations.
www.fao.org

A useful discussion of greenbelt laws in Florida.
hammock.ifas.ufl.edu/txt/fairs/55638

Home page for the Nature Conservancy.
www.tnc.org/magazine/main.html

Drainage information web page from Ontario.
www.drainage.org/planning.htm

The official USDA NRCS National Hydric Soils List.
www.statlab.iastate.edu/soils/hydric/national.html

A wetlands web site with many valuable links to wetlands information.
www.eih.uh.edu/syhabitats/resources/wetlands.htm